Rockville RKDV12 Dual 12" Vented Square Subwoofer Enclosure Designed For 12" Square Subs Such As The Kicker Solo L7/L5/L3 Series - Made in America Using Only the Highest Quality Materials for the Best Performance and Sound From Your Subs Rockville RKDV12 Dual 12" Vented/Ported Square Subwoofer Enclosure Designed For Square Subwoofers Such as The Solo Baric L7/L5/L3 Machine precision cut mounting holes.  USA Heavy Duty MDF Construction Top of the line Glue for extra durable adhesion. High quality GOLD spring loaded terminals Designed, tested, and engineered to work perfectly with 12" Kicker Solobaric L5 or L7 subs.